Question

find the side of triangle whose diagonal is 12 cm​

Answer 1

Question :

Find the side of triangle whose diagonal is 12 cm.

Solution :

Let each side of a Square ABCD is x cm.

Diagonals AC = BD = 12cm

Area of Square = x²cm

In right angled triangle ABC

AB² + BC² = AC²

x² + x² = 12²

2x² = 144

Area of Square = x² = 72

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